summaryrefslogtreecommitdiffstatshomepage
path: root/3rdparty/lzma/CPP/7zip/Common/FileStreams.cpp
blob: 429863630ed4b946260754a3c660d3c206ef586d (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
// FileStreams.cpp

#include "StdAfx.h"

// #include <stdio.h>

#ifndef _WIN32
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <grp.h>
#include <pwd.h>

// for major()/minor():
#include <sys/types.h>
#if defined(__FreeBSD__) || defined(BSD) || defined(__APPLE__)
#else
#ifndef major
#include <sys/sysmacros.h>
#endif
#endif

#endif // _WIN32

#include "../../Windows/FileFind.h"

#ifdef Z7_DEVICE_FILE
#include "../../../C/Alloc.h"
#include "../../Common/Defs.h"
#endif

#include "../PropID.h"

#include "FileStreams.h"

static inline HRESULT GetLastError_HRESULT()
{
  DWORD lastError = ::GetLastError();
  if (lastError == 0)
    return E_FAIL;
  return HRESULT_FROM_WIN32(lastError);
}

static inline HRESULT ConvertBoolToHRESULT(bool result)
{
  if (result)
    return S_OK;
  return GetLastError_HRESULT();
}


#ifdef Z7_DEVICE_FILE
static const UInt32 kClusterSize = 1 << 18;
#endif

CInFileStream::CInFileStream():
 #ifdef Z7_DEVICE_FILE
  VirtPos(0),
  PhyPos(0),
  Buf(NULL),
  BufSize(0),
 #endif
 #ifndef _WIN32
  _uid(0),
  _gid(0),
  StoreOwnerId(false),
  StoreOwnerName(false),
 #endif
  _info_WasLoaded(false),
  SupportHardLinks(false),
  Callback(NULL),
  CallbackRef(0)
{
}

CInFileStream::~CInFileStream()
{
  #ifdef Z7_DEVICE_FILE
  MidFree(Buf);
  #endif

  if (Callback)
    Callback->InFileStream_On_Destroy(this, CallbackRef);
}

Z7_COM7F_IMF(CInFileStream::Read(void *data, UInt32 size, UInt32 *processedSize))
{
  #ifdef Z7_FILE_STREAMS_USE_WIN_FILE
  
  #ifdef Z7_DEVICE_FILE
  if (processedSize)
    *processedSize = 0;
  if (size == 0)
    return S_OK;
  if (File.IsDeviceFile)
  {
    if (File.SizeDefined)
    {
      if (VirtPos >= File.Size)
        return VirtPos == File.Size ? S_OK : E_FAIL;
      const UInt64 rem = File.Size - VirtPos;
      if (size > rem)
        size = (UInt32)rem;
    }
    for (;;)
    {
      const UInt32 mask = kClusterSize - 1;
      const UInt64 mask2 = ~(UInt64)mask;
      const UInt64 alignedPos = VirtPos & mask2;
      if (BufSize > 0 && BufStartPos == alignedPos)
      {
        const UInt32 pos = (UInt32)VirtPos & mask;
        if (pos >= BufSize)
          return S_OK;
        const UInt32 rem = MyMin(BufSize - pos, size);
        memcpy(data, Buf + pos, rem);
        VirtPos += rem;
        if (processedSize)
          *processedSize += rem;
        return S_OK;
      }
      
      bool useBuf = false;
      if ((VirtPos & mask) != 0 || ((size_t)(ptrdiff_t)data & mask) != 0 )
        useBuf = true;
      else
      {
        UInt64 end = VirtPos + size;
        if ((end & mask) != 0)
        {
          end &= mask2;
          if (end <= VirtPos)
            useBuf = true;
          else
            size = (UInt32)(end - VirtPos);
        }
      }
      if (!useBuf)
        break;
      if (alignedPos != PhyPos)
      {
        UInt64 realNewPosition;
        const bool result = File.Seek((Int64)alignedPos, FILE_BEGIN, realNewPosition);
        if (!result)
          return ConvertBoolToHRESULT(result);
        PhyPos = realNewPosition;
      }

      BufStartPos = alignedPos;
      UInt32 readSize = kClusterSize;
      if (File.SizeDefined)
        readSize = (UInt32)MyMin(File.Size - PhyPos, (UInt64)kClusterSize);

      if (!Buf)
      {
        Buf = (Byte *)MidAlloc(kClusterSize);
        if (!Buf)
          return E_OUTOFMEMORY;
      }
      const bool result = File.Read1(Buf, readSize, BufSize);
      if (!result)
        return ConvertBoolToHRESULT(result);

      if (BufSize == 0)
        return S_OK;
      PhyPos += BufSize;
    }

    if (VirtPos != PhyPos)
    {
      UInt64 realNewPosition;
      bool result = File.Seek((Int64)VirtPos, FILE_BEGIN, realNewPosition);
      if (!result)
        return ConvertBoolToHRESULT(result);
      PhyPos = VirtPos = realNewPosition;
    }
  }
  #endif

  UInt32 realProcessedSize;
  const bool result = File.ReadPart(data, size, realProcessedSize);
  if (processedSize)
    *processedSize = realProcessedSize;

  #ifdef Z7_DEVICE_FILE
  VirtPos += realProcessedSize;
  PhyPos += realProcessedSize;
  #endif

  if (result)
    return S_OK;

  #else // Z7_FILE_STREAMS_USE_WIN_FILE
  
  if (processedSize)
    *processedSize = 0;
  const ssize_t res = File.read_part(data, (size_t)size);
  if (res != -1)
  {
    if (processedSize)
      *processedSize = (UInt32)res;
    return S_OK;
  }
  #endif // Z7_FILE_STREAMS_USE_WIN_FILE

  {
    const DWORD error = ::GetLastError();
    if (Callback)
      return Callback->InFileStream_On_Error(CallbackRef, error);
    if (error == 0)
      return E_FAIL;
    return HRESULT_FROM_WIN32(error);
  }
}

#ifdef UNDER_CE
Z7_COM7F_IMF(CStdInFileStream::Read(void *data, UInt32 size, UInt32 *processedSize))
{
  size_t s2 = fread(data, 1, size, stdin);
  int error = ferror(stdin);
  if (processedSize)
    *processedSize = s2;
  if (s2 <= size && error == 0)
    return S_OK;
  return E_FAIL;
}
#else
Z7_COM7F_IMF(CStdInFileStream::Read(void *data, UInt32 size, UInt32 *processedSize))
{
  #ifdef _WIN32
  
  DWORD realProcessedSize;
  UInt32 sizeTemp = (1 << 20);
  if (sizeTemp > size)
    sizeTemp = size;
  BOOL res = ::ReadFile(GetStdHandle(STD_INPUT_HANDLE), data, sizeTemp, &realProcessedSize, NULL);
  if (processedSize)
    *processedSize = realProcessedSize;
  if (res == FALSE && GetLastError() == ERROR_BROKEN_PIPE)
    return S_OK;
  return ConvertBoolToHRESULT(res != FALSE);
  
  #else

  if (processedSize)
    *processedSize = 0;
  ssize_t res;
  do
  {
    res = read(0, data, (size_t)size);
  }
  while (res < 0 && (errno == EINTR));
  if (res == -1)
    return GetLastError_HRESULT();
  if (processedSize)
    *processedSize = (UInt32)res;
  return S_OK;
  
  #endif
}
  
#endif

Z7_COM7F_IMF(CInFileStream::Seek(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition))
{
  if (seekOrigin >= 3)
    return STG_E_INVALIDFUNCTION;

  #ifdef Z7_FILE_STREAMS_USE_WIN_FILE

  #ifdef Z7_DEVICE_FILE
  if (File.IsDeviceFile && (File.SizeDefined || seekOrigin != STREAM_SEEK_END))
  {
    switch (seekOrigin)
    {
      case STREAM_SEEK_SET: break;
      case STREAM_SEEK_CUR: offset += VirtPos; break;
      case STREAM_SEEK_END: offset += File.Size; break;
      default: return STG_E_INVALIDFUNCTION;
    }
    if (offset < 0)
      return HRESULT_WIN32_ERROR_NEGATIVE_SEEK;
    VirtPos = (UInt64)offset;
    if (newPosition)
      *newPosition = (UInt64)offset;
    return S_OK;
  }
  #endif
  
  UInt64 realNewPosition = 0;
  const bool result = File.Seek(offset, seekOrigin, realNewPosition);
  const HRESULT hres = ConvertBoolToHRESULT(result);

  /* 21.07: new File.Seek() in 21.07 already returns correct (realNewPosition)
     in case of error. So we don't need additional code below */
  // if (!result) { realNewPosition = 0; File.GetPosition(realNewPosition); }
  
  #ifdef Z7_DEVICE_FILE
  PhyPos = VirtPos = realNewPosition;
  #endif

  if (newPosition)
    *newPosition = realNewPosition;

  return hres;
  
  #else
  
  const off_t res = File.seek((off_t)offset, (int)seekOrigin);
  if (res == -1)
  {
    const HRESULT hres = GetLastError_HRESULT();
    if (newPosition)
      *newPosition = (UInt64)File.seekToCur();
    return hres;
  }
  if (newPosition)
    *newPosition = (UInt64)res;
  return S_OK;
  
  #endif
}

Z7_COM7F_IMF(CInFileStream::GetSize(UInt64 *size))
{
  return ConvertBoolToHRESULT(File.GetLength(*size));
}

#ifdef Z7_FILE_STREAMS_USE_WIN_FILE

Z7_COM7F_IMF(CInFileStream::GetProps(UInt64 *size, FILETIME *cTime, FILETIME *aTime, FILETIME *mTime, UInt32 *attrib))
{
  if (!_info_WasLoaded)
  {
    RINOK(ReloadProps())
  }
  const BY_HANDLE_FILE_INFORMATION &info = _info;
  /*
  BY_HANDLE_FILE_INFORMATION info;
  if (!File.GetFileInformation(&info))
    return GetLastError_HRESULT();
  */
  {
    if (size) *size = (((UInt64)info.nFileSizeHigh) << 32) + info.nFileSizeLow;
    if (cTime) *cTime = info.ftCreationTime;
    if (aTime) *aTime = info.ftLastAccessTime;
    if (mTime) *mTime = info.ftLastWriteTime;
    if (attrib) *attrib = info.dwFileAttributes;
    return S_OK;
  }
}

Z7_COM7F_IMF(CInFileStream::GetProps2(CStreamFileProps *props))
{
  if (!_info_WasLoaded)
  {
    RINOK(ReloadProps())
  }
  const BY_HANDLE_FILE_INFORMATION &info = _info;
  /*
  BY_HANDLE_FILE_INFORMATION info;
  if (!File.GetFileInformation(&info))
    return GetLastError_HRESULT();
  */
  {
    props->Size = (((UInt64)info.nFileSizeHigh) << 32) + info.nFileSizeLow;
    props->VolID = info.dwVolumeSerialNumber;
    props->FileID_Low = (((UInt64)info.nFileIndexHigh) << 32) + info.nFileIndexLow;
    props->FileID_High = 0;
    props->NumLinks = SupportHardLinks ? info.nNumberOfLinks : 1;
    props->Attrib = info.dwFileAttributes;
    props->CTime = info.ftCreationTime;
    props->ATime = info.ftLastAccessTime;
    props->MTime = info.ftLastWriteTime;
    return S_OK;
  }
}

Z7_COM7F_IMF(CInFileStream::GetProperty(PROPID propID, PROPVARIANT *value))
{
  if (!_info_WasLoaded)
  {
    RINOK(ReloadProps())
  }

  if (!_info_WasLoaded)
    return S_OK;

  NWindows::NCOM::CPropVariant prop;

 #ifdef Z7_DEVICE_FILE
  if (File.IsDeviceFile)
  {
    switch (propID)
    {
      case kpidSize:
        if (File.SizeDefined)
          prop = File.Size;
        break;
      // case kpidAttrib: prop = (UInt32)0; break;
      case kpidPosixAttrib:
      {
        prop = (UInt32)NWindows::NFile::NFind::NAttributes::
            Get_PosixMode_From_WinAttrib(0);
        /* GNU TAR by default can't extract file with MY_LIN_S_IFBLK attribute
           so we don't use MY_LIN_S_IFBLK here */
        // prop = (UInt32)(MY_LIN_S_IFBLK | 0600); // for debug
        break;
      }
      /*
      case kpidDeviceMajor:
        prop = (UInt32)8; // id for SCSI type device (sda)
        break;
      case kpidDeviceMinor:
        prop = (UInt32)0;
        break;
      */
    }
  }
  else
 #endif
  {
    switch (propID)
    {
      case kpidSize:
      {
        const UInt64 size = (((UInt64)_info.nFileSizeHigh) << 32) + _info.nFileSizeLow;
        prop = size;
        break;
      }
      case kpidAttrib:  prop = (UInt32)_info.dwFileAttributes; break;
      case kpidCTime:  PropVariant_SetFrom_FiTime(prop, _info.ftCreationTime); break;
      case kpidATime:  PropVariant_SetFrom_FiTime(prop, _info.ftLastAccessTime); break;
      case kpidMTime:  PropVariant_SetFrom_FiTime(prop, _info.ftLastWriteTime); break;
      case kpidPosixAttrib:
        prop = (UInt32)NWindows::NFile::NFind::NAttributes::
            Get_PosixMode_From_WinAttrib(_info.dwFileAttributes);
            // | (UInt32)(1 << 21); // for debug
        break;
    }
  }
  prop.Detach(value);
  return S_OK;
}


Z7_COM7F_IMF(CInFileStream::ReloadProps())
{
 #ifdef Z7_DEVICE_FILE
  if (File.IsDeviceFile)
  {
    memset(&_info, 0, sizeof(_info));
    if (File.SizeDefined)
    {
      _info.nFileSizeHigh = (DWORD)(File.Size >> 32);
      _info.nFileSizeLow = (DWORD)(File.Size);
    }
    _info.nNumberOfLinks = 1;
    _info_WasLoaded = true;
    return S_OK;
  }
 #endif
  _info_WasLoaded = File.GetFileInformation(&_info);
  if (!_info_WasLoaded)
    return GetLastError_HRESULT();
  return S_OK;
}


#elif !defined(_WIN32)

Z7_COM7F_IMF(CInFileStream::GetProps(UInt64 *size, FILETIME *cTime, FILETIME *aTime, FILETIME *mTime, UInt32 *attrib))
{
  if (!_info_WasLoaded)
  {
    RINOK(ReloadProps())
  }
  const struct stat &st = _info;
  /*
  struct stat st;
  if (File.my_fstat(&st) != 0)
    return GetLastError_HRESULT();
  */
  
  if (size) *size = (UInt64)st.st_size;
  if (cTime) FiTime_To_FILETIME (ST_CTIME(st), *cTime);
  if (aTime) FiTime_To_FILETIME (ST_ATIME(st), *aTime);
  if (mTime) FiTime_To_FILETIME (ST_MTIME(st), *mTime);
  if (attrib) *attrib = NWindows::NFile::NFind::Get_WinAttribPosix_From_PosixMode(st.st_mode);

  return S_OK;
}

// #include <stdio.h>

Z7_COM7F_IMF(CInFileStream::GetProps2(CStreamFileProps *props))
{
  if (!_info_WasLoaded)
  {
    RINOK(ReloadProps())
  }
  const struct stat &st = _info;
  /*
  struct stat st;
  if (File.my_fstat(&st) != 0)
    return GetLastError_HRESULT();
  */

  props->Size = (UInt64)st.st_size;
  /*
    dev_t stat::st_dev:
       GCC:Linux  long unsigned int :  __dev_t
       Mac:       int
  */
  props->VolID = (UInt64)(Int64)st.st_dev;
  props->FileID_Low = st.st_ino;
  props->FileID_High = 0;
  props->NumLinks = (UInt32)st.st_nlink; // we reduce to UInt32 from (nlink_t) that is (unsigned long)
  props->Attrib = NWindows::NFile::NFind::Get_WinAttribPosix_From_PosixMode(st.st_mode);

  FiTime_To_FILETIME (ST_CTIME(st), props->CTime);
  FiTime_To_FILETIME (ST_ATIME(st), props->ATime);
  FiTime_To_FILETIME (ST_MTIME(st), props->MTime);

  /*
  printf("\nGetProps2() NumLinks=%d = st_dev=%d st_ino = %d\n"
      , (unsigned)(props->NumLinks)
      , (unsigned)(st.st_dev)
      , (unsigned)(st.st_ino)
      );
  */

  return S_OK;
}

Z7_COM7F_IMF(CInFileStream::GetProperty(PROPID propID, PROPVARIANT *value))
{
  if (!_info_WasLoaded)
  {
    RINOK(ReloadProps())
  }

  if (!_info_WasLoaded)
    return S_OK;

  const struct stat &st = _info;

  NWindows::NCOM::CPropVariant prop;
  {
    switch (propID)
    {
      case kpidSize: prop = (UInt64)st.st_size; break;
      case kpidAttrib:
        prop = (UInt32)NWindows::NFile::NFind::Get_WinAttribPosix_From_PosixMode(st.st_mode);
        break;
      case kpidCTime:  PropVariant_SetFrom_FiTime(prop, ST_CTIME(st)); break;
      case kpidATime:  PropVariant_SetFrom_FiTime(prop, ST_ATIME(st)); break;
      case kpidMTime:  PropVariant_SetFrom_FiTime(prop, ST_MTIME(st)); break;
      case kpidPosixAttrib: prop = (UInt32)st.st_mode; break;

        #if defined(__APPLE__)
        #pragma GCC diagnostic push
        #pragma GCC diagnostic ignored "-Wsign-conversion"
        #endif

      case kpidDeviceMajor:
      {
        // printf("\nst.st_rdev = %d\n", st.st_rdev);
        if (S_ISCHR(st.st_mode) ||
            S_ISBLK(st.st_mode))
          prop = (UInt32)(major(st.st_rdev)); //  + 1000);
        // prop = (UInt32)12345678; // for debug
        break;
      }
        
      case kpidDeviceMinor:
        if (S_ISCHR(st.st_mode) ||
            S_ISBLK(st.st_mode))
          prop = (UInt32)(minor(st.st_rdev)); // + 100);
        // prop = (UInt32)(st.st_rdev); // for debug
        // printf("\nst.st_rdev = %d\n", st.st_rdev);
        // prop = (UInt32)123456789; // for debug
        break;

        #if defined(__APPLE__)
        #pragma GCC diagnostic pop
        #endif

      /*
      case kpidDevice:
        if (S_ISCHR(st.st_mode) ||
            S_ISBLK(st.st_mode))
          prop = (UInt64)(st.st_rdev);
        break;
      */

      case kpidUserId:
      {
        if (StoreOwnerId)
          prop = (UInt32)st.st_uid;
        break;
      }
      case kpidGroupId:
      {
        if (StoreOwnerId)
          prop = (UInt32)st.st_gid;
        break;
      }
      case kpidUser:
      {
        if (StoreOwnerName)
        {
          const uid_t uid = st.st_uid;
          {
            if (!OwnerName.IsEmpty() && _uid == uid)
              prop = OwnerName;
            else
            {
              const passwd *pw = getpwuid(uid);
              if (pw)
              {
                // we can use utf-8 here.
                // prop = pw->pw_name;
              }
            }
          }
        }
        break;
      }
      case kpidGroup:
      {
        if (StoreOwnerName)
        {
          const uid_t gid = st.st_gid;
          {
            if (!OwnerGroup.IsEmpty() && _gid == gid)
              prop = OwnerGroup;
            else
            {
              const group *gr = getgrgid(gid);
              if (gr)
              {
                // we can use utf-8 here.
                // prop = gr->gr_name;
              }
            }
          }
        }
        break;
      }
    }
  }
  prop.Detach(value);
  return S_OK;
}


Z7_COM7F_IMF(CInFileStream::ReloadProps())
{
  _info_WasLoaded = (File.my_fstat(&_info) == 0);
  if (!_info_WasLoaded)
    return GetLastError_HRESULT();
  return S_OK;
}

#endif




//////////////////////////
// COutFileStream

HRESULT COutFileStream::Close()
{
  return ConvertBoolToHRESULT(File.Close());
}

Z7_COM7F_IMF(COutFileStream::Write(const void *data, UInt32 size, UInt32 *processedSize))
{
  #ifdef Z7_FILE_STREAMS_USE_WIN_FILE

  UInt32 realProcessedSize;
  const bool result = File.Write(data, size, realProcessedSize);
  ProcessedSize += realProcessedSize;
  if (processedSize)
    *processedSize = realProcessedSize;
  return ConvertBoolToHRESULT(result);
  
  #else
  
  if (processedSize)
    *processedSize = 0;
  size_t realProcessedSize;
  const ssize_t res = File.write_full(data, (size_t)size, realProcessedSize);
  ProcessedSize += realProcessedSize;
  if (processedSize)
    *processedSize = (UInt32)realProcessedSize;
  if (res == -1)
    return GetLastError_HRESULT();
  return S_OK;
  
  #endif
}
  
Z7_COM7F_IMF(COutFileStream::Seek(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition))
{
  if (seekOrigin >= 3)
    return STG_E_INVALIDFUNCTION;
  
  #ifdef Z7_FILE_STREAMS_USE_WIN_FILE

  UInt64 realNewPosition = 0;
  const bool result = File.Seek(offset, seekOrigin, realNewPosition);
  if (newPosition)
    *newPosition = realNewPosition;
  return ConvertBoolToHRESULT(result);
  
  #else
  
  const off_t res = File.seek((off_t)offset, (int)seekOrigin);
  if (res == -1)
    return GetLastError_HRESULT();
  if (newPosition)
    *newPosition = (UInt64)res;
  return S_OK;
  
  #endif
}

Z7_COM7F_IMF(COutFileStream::SetSize(UInt64 newSize))
{
  return ConvertBoolToHRESULT(File.SetLength_KeepPosition(newSize));
}

HRESULT COutFileStream::GetSize(UInt64 *size)
{
  return ConvertBoolToHRESULT(File.GetLength(*size));
}

#ifdef UNDER_CE

Z7_COM7F_IMF(CStdOutFileStream::Write(const void *data, UInt32 size, UInt32 *processedSize))
{
  size_t s2 = fwrite(data, 1, size, stdout);
  if (processedSize)
    *processedSize = s2;
  return (s2 == size) ? S_OK : E_FAIL;
}

#else

Z7_COM7F_IMF(CStdOutFileStream::Write(const void *data, UInt32 size, UInt32 *processedSize))
{
  if (processedSize)
    *processedSize = 0;

  #ifdef _WIN32

  UInt32 realProcessedSize;
  BOOL res = TRUE;
  if (size > 0)
  {
    // Seems that Windows doesn't like big amounts writing to stdout.
    // So we limit portions by 32KB.
    UInt32 sizeTemp = (1 << 15);
    if (sizeTemp > size)
      sizeTemp = size;
    res = ::WriteFile(GetStdHandle(STD_OUTPUT_HANDLE),
        data, sizeTemp, (DWORD *)&realProcessedSize, NULL);
    _size += realProcessedSize;
    size -= realProcessedSize;
    data = (const void *)((const Byte *)data + realProcessedSize);
    if (processedSize)
      *processedSize += realProcessedSize;
  }
  return ConvertBoolToHRESULT(res != FALSE);

  #else
  
  ssize_t res;

  do
  {
    res = write(1, data, (size_t)size);
  }
  while (res < 0 && (errno == EINTR));
  
  if (res == -1)
    return GetLastError_HRESULT();

  _size += (size_t)res;
  if (processedSize)
    *processedSize = (UInt32)res;
  return S_OK;
  
  #endif
}

#endif